/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionPathTracingQualitySwitch.h
class UMaterialExpressionPathTracingQualitySwitch : public [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression)
FExpressionInpu...
Normal
Used for non-path traced modes
FExpressionInpu...
PathTraced
Used by the path tracer